JPH0235526Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to an air conditioner for automobiles.

(Prior Art) As a conventional air conditioner for automobiles, for example, one described in Japanese Patent Application Laid-open No. 12418/1983 is known.

In this conventional device, an air conditioning unit having a blower motor and a heat exchanger is provided extending in the vehicle width direction. After the air is heated or cooled, the air is blown into the vehicle interior from each outlet either directly or through an air distribution duct such as a differential duct.

(Problem to be solved by the invention) By the way, as shown in this conventional example,
The outside air inlet is formed to open upward at a position above the blower motor.

This is, for example, another conventional example,
As shown in Publication No. 158562, an air box for taking in outside air is provided on the inside of the vehicle at the upper end of the dash panel, which is above the blower motor. There is.

In this type of structure, the air box and air conditioning unit are arranged one above the other, which increases the vertical dimension and lowers the placement of the air conditioning unit, resulting in a narrow leg space. , the height of the instrument panel becomes higher, which narrows the field of view and reduces the degree of freedom of design, and the distance between the air conditioning unit and each nozzle becomes longer in the vertical direction, resulting in longer air distribution ducts. Problems arise in that the airflow resistance increases due to the large number of curved and curved parts, and that it takes time and effort to assemble the air distribution duct.

Another possibility is to place the parts of the air conditioning unit other than the blower motor behind the air box so that they do not overlap vertically with the air box, but in this case, there may be wasted space between the dash panel and the air conditioning unit. , a problem arises in that the front and rear dimensions of the vehicle compartment are narrowed.

(Means for Solving the Problems) The present invention was developed by focusing on the problems of the conventional vehicle as described above, and is designed to allow the air conditioning unit to be placed as high as possible without narrowing the front and rear dimensions of the passenger compartment. It is an object of the present invention to provide an air conditioner for an automobile that can expand foot space and shorten the wiring distance of a wind distribution duct.

To achieve this objective, in the present invention, an air box with a box cross-section extends in the vehicle width direction at the front side of the vehicle above the vehicle body's dash panel that hangs down to partition the passenger compartment from the front of the vehicle. The air box is fixed to the upper part, and the air box has a rear vertical wall formed on the passenger compartment side, and an air intake for the unit is formed in the rear vertical wall, and the blower motor and heat exchanger are adjacent to each other in the vehicle width direction. The air conditioning unit is attached to the vehicle body at a position on the rear side of the air box and inside the instrument panel, extending in the vehicle width direction, and the air intake port of the air conditioning unit is connected to the air conditioning unit. The proximal end of each duct consisting of a front defroster duct, a side defroster duct, and a ventilator duct is connected to the air intake port so as to introduce outside air through the air box, and whose tips are connected to the front defroster nozzle, side defroster nozzle, and ventilator nozzle. The means is connected to an air outlet of an air conditioning unit, and each of the ducts is arranged in parallel in the vehicle width direction at a position inside the instrument panel and at a rear position of the air box.

(Function) Therefore, in the automotive air conditioner of the present invention,
The air box is installed at the front of the vehicle at the top of the dash panel, and the air conditioning unit is connected to the air intake port for the unit formed on the rear vertical wall of the air box, so the air conditioning unit is located below the air box. The air conditioning unit can be placed at a higher position than when it is placed in the air conditioner, and there is no need to separate the air conditioning unit from the dash panel, so the size of the passenger compartment does not need to be reduced.

In addition, as mentioned above, the air conditioning unit can be placed at a high position, and the front defroster duct, side defroster duct, and ventilator duct are located inside the instrument panel and behind the air box.
Because the ducts are arranged in parallel in the vehicle width direction, each duct is designed to minimize the difference in height between the base end connected to the air conditioning unit and the tip end, which is the nozzle side. The length of the duct can be shortened, and the amount of bending of each duct can be reduced.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the configuration of the embodiment shown in FIGS. 1 to 3 will be described.

The automobile air conditioner according to the embodiment of the present invention is installed in an automobile A, and includes an air box 10, an air conditioning unit 20, and an air distribution duct 30, as shown in the figure.

Note that the car A is a left-hand drive car.

As shown in FIGS. 1 to 3, the air box 10 is formed into a box cross-sectional shape by joining iron plates, and is located at the lower end of the front window 1 and at the upper rear end of the engine compartment 2 in the vehicle width direction. It is extended and fixed to the upper end of the dash panel 3 by welding.

Further, the air box 10 has an outside air intake port 11 extending in the vehicle width direction on its upper surface, and a rear vertical wall 12 joined to the dash panel 3 on the rear side. In the rear vertical wall 12, as shown in FIGS. 2 and 3, a unit air intake port 13 is opened integrally with the communication hole 4 opened in the dash panel 3.

Incidentally, a drip groove 14 is formed on the lower surface of the air box 10.

The air conditioning unit 20 is a unit that cools, heats, dehumidifies, etc. the air taken into the unit and blows it out to the passenger compartment 5 side.
As shown in FIG. 1, the blower unit 21 includes a blower unit 21 and a temperature control unit 22, and is located within the instrument panel 6, at a position diagonally rearward and downward of the air box 10, and vertically adjacent to the lower part of the air box 10. The blower unit 21 and the temperature control unit 22 are disposed adjacent to the dash panel 3 at a height that partially overlaps the vehicle width direction.

The blower unit 21 is equipped with a blower motor (not shown) inside, and as shown in FIG. Therefore, it is fixed to the mount member 7.

The temperature control unit 22 includes a heater core that is a heat exchanger and an evaporator (both not shown).
is connected to the blower unit 21, and is fixed to the mount member 7 by an upper support bracket 221, as shown in FIG.
It is fixed to the dash panel 3 at 22.

The mount member 7 also serves as a steering mount member for mounting and supporting a steering column (not shown), extends in the vehicle width direction, and has both ends fixed to the vehicle body.

Further, as shown in FIGS. 1 and 3, a defroster outlet 24 is formed on the upper surface of the downstream end of the air passage 223 of the temperature control unit 22, and a ventilator outlet 25 is formed on the rear surface. , an air distribution box 26 is formed continuously thereto. Then, as shown in FIG. 3, the air distribution box 26
A center ventilator outlet 261 is formed on the top surface, and side ventilator outlets 262 are formed on the left and right sides.

The defroster outlet 24 is opened and closed by a defroster door 27, and the ventilator outlet 25 is opened and closed by a ventilator door 28.

The air distribution duct 30 is connected to the air conditioning unit 20.
It distributes the air blown from the vehicle to various parts of the passenger compartment.
As shown in FIGS. 1 to 3, a front defroster duct 31 distributes air to a front defroster nozzle 41 formed at the lower end of the front window 1.
, a side defroster duct 32 that distributes air to side defroster nozzles 42, 42 formed at both left and right ends of the instrument panel 6, a center ventilator duct 33 that distributes air to a center ventilator nozzle 43, and a side ventilator nozzle 44, 44. It is comprised of side ventilator ducts 34, 34 that distribute air to.

As shown in FIGS. 1 and 3, the front defroster duct 31 is arranged so that its distal end side is located behind the air box 10 and above the instrument panel 6 at the same height as the top of the air box 10. A front defroster nozzle 41 extends in the vehicle width direction in the installed state, and is provided at the top of the instrument panel 6 at its tip.
is connected.

Further, the base end side of the front defroster duct 31 is connected to the defroster outlet 24 of the temperature control unit 22, and is bent forward at a bent portion 311 above the base end. The bent portion 311 of this front defroster duct 31
A duct air outlet 312 is opened in the center of the upper surface of the duct.

The side defroster duct 32 is connected to the duct air outlet 312 at a central portion corresponding to the base end, and extends left and right behind the air box 10 and the front defroster duct 32 so as to be parallel to the front defroster duct 31. It is bent toward the rear of the vehicle at both left and right ends.

As shown in FIG. 1, one tip (right end in the figure) of the side defroster duct 32 is supported by the mount member 7, and the other tip (left end) is supported by the side ventilator duct 32. 34
is supported by

The center ventilator duct 33 has a base end connected to the center ventilator outlet 261, and a distal end located at a rear position at the center of the upper part of the instrument panel 6 and at the same height as the upper part of the air box 10. The center ventilator nozzle 43 is connected to the center ventilator nozzle 43.

The side ventilator duct 34 includes a first
As shown in FIG. 3, the base end is connected to the air distribution box 26.
After being connected to the side ventilator outlet 262 of They are arranged in parallel and extend in the vehicle width direction.

Note that the side ventilator duct 34 is supported by the mount member 7.

Next, the operation of the embodiment will be explained.

In the automotive air conditioner according to the embodiment of the present invention, as shown in the figure, an air box 10 is provided in the engine room 2, and an air box 10 is located directly behind the engine room 2, adjacent to the air box 10, and adjacent to the air box 10. An air conditioning unit 20 is provided at a height that partially overlaps the lower part in the vertical direction, and the air conditioning unit 20 extends in the vehicle width direction. The ventilator duct 33 and the side ventilator duct 34 are each located at the rear of the air box 10, and
Since they are arranged side by side and extend in the vehicle width direction at the same height as the upper part of the air box 10, the air conditioning unit 20 can be placed above to reduce the vertical dimensions of the device.

Furthermore, the front defroster duct 31, side defroster duct 32, and side ventilator duct 34 of the air distribution duct 30 are connected to the air conditioning unit 2.
The ducts 31, 32, and 34 extend in the vehicle width direction in parallel to each other at the upper position of the instrument panel 6, and the air conditioning unit 20 is disposed above as described above. The amount of bending of each duct 31, 32, 34 can be reduced by reducing the difference in height between the proximal end and the distal end.

Since the air duct 30 and the air conditioning unit 20 are located close to each other, the mount member 7 can be commonly used for mounting both, and the mounting structure such as the mount bracket becomes simple. Furthermore, even if the air conditioning unit 20 is installed behind the air box 10, it is close to the dash panel 3, so there is no need to provide a long bracket to fix the air conditioning unit 20 to the dash panel 3, making it easy to install, and the bracket does not become heavy. .

As described above, in the automotive air conditioner of the embodiment, by making the vertical dimensions of the device smaller, the leg space can be increased and the height of the instrument panel 6 can be lowered, making it possible to improve the living space. This has the effect of improving performance, ensuring visibility, and increasing the degree of freedom in shaping.

Further, by reducing the amount of bending of the air distribution duct 30, it is possible to reduce the air blowing resistance, and at the same time, it is possible to obtain the effect that the assembly work can be made easier.

In addition, since the air conditioning unit 20 is supported by the strong mount member 7 and the dash panel 3, there is also the effect that sufficient support rigidity is ensured.

Moreover, in the embodiment device, the connection between the center and side ventilator ducts 33, 34 and the air conditioning unit 20 is
A center ventilator outlet 261 and a side ventilator outlet 262 facing the direction in which the ventilator 4 extends.
Since this is done by forming a ventilation box 26 with This provides the effect of being able to change the direction of the blown air.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and any design changes that do not depart from the gist of the present invention are included in the present invention. It can be done.

For example, in the embodiment, the air conditioning unit was arranged diagonally below and behind the air box, but it was arranged directly behind the air box, and the air box, air conditioning unit, and air distribution duct were arranged in parallel in order from the front of the vehicle body. It's okay.

Further, the positions and shapes of the front defroster nozzle, side defroster nozzle, and ventilator nozzle can be freely selected and are not limited to the embodiments. For example, the side defroster may be opened in the side door. .

(Effects of the invention) As explained above, in the automotive air conditioning system of the invention, the vertical dimensions of the air conditioning unit can be reduced without narrowing the front and rear dimensions of the vehicle interior, thereby increasing the leg space. This has the effect of improving livability by lowering the height of the instrument panel, ensuring visibility and increasing the degree of freedom in design.

In addition, since the overall length of the front defroster duct, side defroster duct, and ventilator duct can be shortened and the amount of bending can be reduced, it is possible to reduce the air resistance of these ducts, and the assembly work is facilitated. This effect can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the device of the present invention;
FIGS. 2 and 3 are cross-sectional views showing the embodiment device. 1...Front window, 3...Dash panel, 10...Air box, 11...Outside air intake, 12...Rear vertical wall, 13...Air intake for unit, 20...Air conditioning unit, 31...Front Defroster duct, 32...Side defroster duct, 33...Center ventilator duct,
34... Side ventilator duct, 41... Front defroster nozzle, 42... Side defroster nozzle, 43... Center ventilator nozzle, 44... Side ventilator nozzle.

Claims (1)

[Scope of Claim for Utility Model Registration] An airbox with a box cross-section extends in the vehicle width direction at the front side of the vehicle above the dash panel of the vehicle body that hangs down to separate the passenger compartment from the front of the vehicle. The air box has a rear vertical wall formed on the passenger compartment side, an air intake for the unit formed in the rear vertical wall, and a blower motor and a heat exchanger arranged adjacent to each other in the vehicle width direction. an air conditioning unit extending in the vehicle width direction and attached to the vehicle body at a position on the rear side of the air box and inside the instrument panel; The proximal end of each duct consisting of a front defroster duct, a side defroster duct, and a ventilator duct is connected to the intake port so that outside air can be introduced through the air box, and whose tips are connected to the front defroster nozzle, side defroster nozzle, and ventilator nozzle. connected to the air outlet of the harmonization unit, each of the ducts being located inside the instrument panel and at the rear of the air box;
An air conditioner for an automobile characterized in that the air conditioners are arranged in parallel and extending in the width direction of the vehicle.